The death of Brian Jones, the calamity that was Altamont and the prison sentences handed down to Mick Jagger and Keith Richards all impacted upon the band's fortunes.

Enter the unlikely figure of Prince Rupert Loewenstein. Born in Majorca, the royal helped to transition the band's fortunes, with The Rolling Stones founding their own label and moving to the south of France.

Becoming Britain's first (but certainly not last) high-profile tax exiles, the move completely changed the band. Under his guidance, Jagger would go on to amass wealth in excess of £200 million.

Music Week report that Prince Rupert Loewenstein died in the early hours of Tuesday morning (May 20th) after a long battle with illness. He was 80 years old.